A tool includes a handle, a working device, a positioning device, a clamping device, and a fine adjustment mechanism. The handle includes a pivotal end, a grip end, and a plurality of retaining sections. The working device is pivotally connected to the pivotal end of the handle. The positioning device is moveable between a fixing position and an adjusting position. The clamping device is adjustably positioned on the handle. The fine adjustment mechanism for fine adjusting the clamping device is adjustably positioned on the handle and engaged with the clamping device. The fine adjustment mechanism includes at least one positioning unit alternatively engaged with a selective one of the plurality of retaining sections to fix the clamping device to the handle in position. The clamping device is adapted to be fine adjustably moved through a distance smaller than a pitch between two adjacent retaining sections. Link to USPTO.